Window-operating mechanism



April l5, 1930. l P. s. GEUss 1,754,623

WINDOW OPERATING ME-CHANISM Filed.v June 22, 1928 Patented Apr. l5, 1930PAUL` S. GE'U'SS, OF EASTON, PENNSYLVANIA WINDOW-OPERATING- MECHANISMimplication mea Tune 22,

the above mentioned character wherein the window may be elevated to anydesired point and will remain in such position.

A further object is to provide the application of lifting force to thewindow at points equidistantly spaced from the center thereof wherebythe window readily may be raised and will be prevented from binding, asoften occurs with the usual window 4constructions wherein the liftingforce is applied to one side of the center thereof. H

A further object is to provide novel spring means tending to balanceeach other and the weight of the parts includingrthe window, whereby theoperation of the device may be accomplished with little eifort, andwhereby the window is adapted to remain in any adjusted position.

A further object is to provide novel lever means for operating thewindow, whereby the latter is, in effect, fixed against movement when inits uppermost position.

Other objects and advantages of the in-l vention will become apparentduring the course of the following description.

In the drawings I have shown one embodi-4 ment ofthe invention. In thisshowing,

Figure 1 is an inside elevation of a vehicle door, parts being removed,and,

Figure 2 is a section substantially on line 22 of Figure 1, the latchcasing of the door and associated elements being omitted.

Referring to the drawings, the numeral designates a vehicle door as awhole including inner and outer walls 11 and 12 respectively. The doorfurther includes side Aframe mem- 1928. Serial N0. 287,556.

bers 13 and 14 respectively, and upper and lower frame members 15 and16. A pair of braces 17 and 18 are connected between the side framemembers, as shown.

The outer wall 12 extends throughout a portion of the height of the doorto provide a sash opening 19 having a lower sill 20. A sash or windowglass 21 is adapted to reciprocate in the sash opening in the usualmanner, and is provided at its lower edge with a guideway 22 for apurpose to be described.

An operating lever 23 is pivotally connected to the brace 17 as at 24and is providedat its upper end with an operating handle 25 movable in aslot 25 formed in the wall 11 concentric with the pivot 24. The lowerend of this lever is pivotally connected by a pivot pin or bolt 26 tothe upper end of a link'27, the latter being curved as shown in Figure 2whereby its lower portion is arranged outk wardly of the brace 18 topermit its connection to other elements of the device to be described. Aspring 28 is connectedv at its lower Vend to the bolt 26, and has itsupper lend secured by a bolt or the like 29 to the casingv 30 of theusual latch mechanism of the door. This latch mechanism includes a latch314 and an operating lever 32, and forms no part of the presentinvention. If desired, theupper end of the spring 28 may be secured toany n other suitable relativelystationary portion of the door. i

A link 33 ispivotally connected as at 34 to the lever 23 above the pivotthereof, and the lower end of the link 33 is pivotally connected as at35`to the upper end of a lever 36. This lever is pivotally connectedintermediate its ends as at 37 to a supporting plate 38 secured to thelower brace member 18. A lower link 39 is pivotally connected at itsupper end as at 40 to the lower end of the lever 36. As will becomeapparent, the link 39 corresponds to the link 27, and the lower ends ofthese links move `equal distances upon operation of the lever 23. The 9link 39 is curved similar to the link 27, as shown in Figure 2, topermit its connection to its associated elements which lie on oppositesides of the brace 18.

A pair of identical levers 41 and 42 pivotally connected as at 43 to thelowerbrace member 18. These levers are pivotally connected at theirlower ends as at 44 to the lower ends of the links 39 and 27respectively. A coil spring 45 has its ends connected to the pivotmembers 44 whereby the lower ends of the levers 41 and 42 are normallyurged toward each other. A similar spring 46 is connected at its ends tothe levers 41 and 42 above the pivot 43 to add its eli'ect to that ofthe spring 45 to move the upper ends of the associated levers towardeach other.

Bolts or similar pivot members 47 connect the upper ends of the levers41and 42 to the lower ends of links 48, the upper ends of these links'bein pivotally connected as at 49 to levers 50. lle lower ends of theselevers 50 are pivotally connected as at 51 to the upper .brace member17, as shown in Figure 1, The levers 50 extend upwardly beyond the pivotpins 49 and are provided at their upper ends with rollers 52 adapted totravel in the guideway 2,2 as will become apparent. These rollers arespaced e uidistantly on opposite sides of the center o the lower edge ofthe window sash to exert equal lifting forces against opposite edges ofthe window.

The operation of the device is as follows:

`The motion of the handle 25 corresponds to that of the window 21, thatis, the handle 25 is moved u wardly to raise the window and downwar lyto lower the latter. Assuming the parts to be in the position shown inFigure 1, the window will be in its uppermost position. If it is desiredto lower the window, the operator will move the handle 25 downwardly,thus swinging the upper and lower ends of the lever 23 downwardly andupwardly respectively. Upward movement o the lower end of the lever 23pulls the link 27 upwardly, thus elevating the lower end 0f the lever41. Simultaneously with this action, downward movement of the upper endof lever 23 will move the link 33 downwardly to lower the upper end ofthe lever 36 and elevate the lower end thereof. This movement istransmitted through the link 3,9 to the lower end of the lever 42 toelevate the latter, and thus move the upper end of the lever 42downwardly.

The lever arms of the various elements between the handle 25 and thepivot members 44 are so desi ed that movement of the handle will equiistantly move the lower ends of the levers 41 and 42. As previouslystated, these levers are identical, and hence the upper ends of theselevers will move through equal arcs u on a given movement of the handle25. e levers 50 also are identical, and upon downward movement of thepivot pins 47 away from each other, the upper ends of the levers 50 willbe swung downwardly and inwardly through equal arcs. Thus the rollers 52will be maintained at the same level for all movements of the levers 50,and when movement is transmitted to these levers in the mannerpreviously described, they will move downwardly, thus causing the windowto be lowered.

Upward movement of the window is accomplished by a reversal of theactions just described. Upward movement of the handle 25 depresses thelinks 27 and 39 through their respective connections, thus moving theupper and lower ends of the levers 41 and 42 toward each other. Thisaction causes the pivot bolts 49 to be elevated, together with thelevers 50. The rollers 52 thus cause the window to be elevated. Aspreviously stated, the rollers 52 are spaced equidistantly on oppositesides of the'center of the window glass 21, and thus equal movement willbe transmitted to both sides of the window, and any binding action ofthe latter will be prevented.

The elimination of the binding action ree ferred to materially reducesthe friction of the parts, thus reducing the force necessary to operatethe window. This force is further reduced by the provision of thesprings 28,

45 and 46, The latter two springs tend to move the upper and lower endsof the levers 41 and 42 toward each other to effect a lifting actionagainst the window, and the tension of these springs preferably isslightly in excess of that necessary to overcome the weight of theparts. This excess in tension is balanced by the tension of the spring2S which tends to move the window downwardly. Thus the various forcesare perfectly'balanced, and the window will remain in any desiredposition.

When the window is in the fully elevated position, the parts will assumethe positions shown in Figure 1, and it will be apparent that the links48 are substantially in alinement with their respective levers 41 and42, and thus it will be impossible to exert a ,suiiicient iorce againstthe window itself to move it downwardly. Accordingly when the vehicle isleft standing with the doors locked, unauthorized persons will be prc.vented from gaining access to the interior of the vehicle through anattempt to force one of the windows downwardly.

It will be ap )arent that a single movement of the lever 23 1s adaptedto move the window between extreme upper and lower positions, thuspermitting the desired action to be readily accomplished. With the usualconstructions employing an operating crank, it is necessary to rotatethe crank through a number of revolutions to accomplish the same result.

It is to be understood that the form of the invention ,herewith shownand described is to. be taken as a preferred example of the same andthat various changes in the shape, sitze and arrangement of parts may beresorted to without departing frQm the Spilof the invention or the scopeof the subjoined claims.

l. A device of the character described comprising a pair of lever armsof equal length pivotally supported at their lower ends and having theirupper ends adapted to support a vertically slidable window at spacedpoints along the lower edge thereof, a pair of levers pivotallysupported intermediate their ends, means pivotally connecting one end ofeach lever of said pair to one of said lever arms, spring meansconnected at opposite ends to said pair of levers, and means forswinging the opposite ends of said pair of levers toward and away fromeach other.

2. A device constructed in accordance with claim 1 wherein said lastnamed means comprises a swinging lever, and operating connectionsbetween said lever and the second mentioned ends of said pair of levers.

3. A device of the character described comprising a pair of lever armsof equal length pivotally supported at their lower ends and beinginclined upwardly and inwardly toward their upper ends to support avertically slidable window at spaced points along the lower edgethereof, a pair of levers supported to swing about a common axisintermediate their ends, a link pivotally connected at one end to theupper end of each of said pair of levers, the opposite ends of saidlinks being pivotally connected to said lever arms, spring means tendingto move said pair of levers toward each other to elevate the window, asingle operating lever, and connections between said operating lever andthe lower ends of said pair of levers.

4.. A device constructed in accordance with claim 3 wherein saidconnections comprise a link pivotally connected at one end to saidoperating lever to one side of the pivot thereof and at its oppositeendto the lower end of one lever of said pair, an intermediate leverpivotally supported intermediate its ends, a link pivotally connected atone end to one end of said intermediate lever and at its opposite end tosaid operating lever at the opposite side of the pivot thereof, and alink connected at one end to the lower end of the other lever of saidpair and at its other end to the opposite end of said intermediatelever.

5. A device constructed in accordance with claim 3 wherein the tensionof said spring means is slightly 1n excess of the weight of along thelower edge thereof, a pair of levers PAUL S. GEUSS.

